13umm, if you are interested in learning more about this topic, I would suggest starting from Ron Dumont and John Willis's website:
https://www.myschoolpsychology.com/It's a pretty bare bones site from a webdesign standpoint (and very text-heavy), but these are two of the legends of psychological assessment, and well worth learning from, even on the pages that are about older versions of tests.
You might also find interesting Kevin McGrew's family of websites:
http://themindhub.com/He's the author of the later revisions of the Woodcock-Johnson system of cognitive and academic assessment intstruments, and co-developer of one of the major interpretive models for cognitive assessment (the cross-battery assessment model). One of the daughter sites (IQ's Corner) is mostly about cognitive assessment. Keep in mind that he is also selling his books, products and services, so take what he says about some of the less mainstream topics with a grain of salt.
As always, be careful about what is called in the field "operating outside of the scope of one's practice," when offering your interpretive thoughts, but do enjoy the process of diving deep into assessment topics.
FWIW, the seeds of my interest in this field were sown in my own childhood, when my siblings and I first experienced cognitive assessment as examinees.
